Question

hundreds of years ago, the aztecs and incas built complex civilizations. the aztecs settled in the valley of mexico in central mexico. meanwhile, the incas took up residence in the andes mountains of present - day peru. unlike the aztecs, who had a perfect climate for farming, the incas faced a challenging climate in the mountains. in response, they developed irrigation methods to water their crops. the incas also built tens of thousands of miles of roads to navigate the mountainous terrain. while the aztecs developed a writing system, the incas used knotted ropes called quipus to keep track of inventories. in the early 1500s, spanish armies attacked both empires. after years of fighting, the spanish forces defeated both the incas and the aztecs.

Explanation:

• For "Settled in the mountains": The Aztecs settled in the Valley of Mexico (not mountains), while the Incas settled in the Andes Mountains (so Incas check this).
• For "Developed lengthy roadways": The text states "the Incas also built tens of thousands of miles of roads", so Incas check this.
• For "Developed a writing system": "While the Aztecs developed a writing system", so Aztecs check this.
• For "Attacked by Spanish conquerors": "In the early 1500s, Spanish armies attacked both empires", so both Aztecs and Incas check this.

Answer:

• Settled in the mountains: Aztecs ( ), Incas (✓)
• Developed lengthy roadways: Aztecs ( ), Incas (✓)
• Developed a writing system: Aztecs (✓), Incas ( )
• Attacked by Spanish conquerors: Aztecs (✓), Incas (✓)